commercial unit of enrgy

Asked by abhay rana | 31st Oct, 2013, 04:56: PM

Expert Answer:

The commercial unit of energy is kWh (kilowatthour). We define kilowatt-hour as the amount of energy consumed when an electrical appliance of 1000 watt power rating is used for 1 hour.

i.e.

1 kWh = 1000 W x 1 hour

          = 1000 W x 3600 s

          = 3.6 x 10J

The energy used in households, industries and commercial establishments are usually expressed in kilowatt hour.

Answered by Faiza Lambe | 31st Oct, 2013, 05:12: PM

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